Quick view Details PREDATOR 420 | sku: NR_NRROCK-SM420-13 Roller Rockers 1.3 Ratio Predator 420 HEMI MSRP: Now: $169.99 View Details Compare Quick view Details PREDATOR 420 | sku: NR_VC420-BILLET Billet Valve Cover Predator 420 Hemi MSRP: Now: $99.99 Add to Cart Compare Quick view Details Predator | sku: NR_CHAMP390 Champion Shaft Mounted 1.1:1 Rocker Arms GX390 Predator 420 MSRP: Now: $28.99 Add to Cart Compare Quick view Details NR RACING | sku: NR_4299NR-1 Lash caps, 6.5 mm, Hardened for Stainless Valves (GX270 & GX390), Pair MSRP: Now: $9.99 View Details Compare Quick view Details NR RACING | sku: NR_MD016483 Split Keepers for Stainless Valves with 6.5mm Stems MSRP: Now: $6.99 Add to Cart Compare Quick view Details NR RACING | sku: NR_DLRET-390-ALUM Aluminum Retainer for 6.5 mm Valves MSRP: Now: $6.99 Add to Cart Compare Quick view Details NR RACING | sku: NR_VAL32-65-3465 Stainless Valve 31.5 mm x 6.5 mm MSRP: Now: $31.99 View Details Compare Quick view Details NR RACING | sku: NR_VAL35-65-3465 Stainless Valve 35 mm x 6.5 mm MSRP: Now: $31.99 View Details Compare Quick view Details Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves MSRP: $31.99 Now: $18.42 View Details Compare SPECIAL ORDER Quick view Details Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda MSRP: Now: $71.99 Add to Cart Compare SPECIAL ORDER Quick view Details sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare MSRP: Now: $69.99 Add to Cart Compare Quick view Details sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block MSRP: Now: $29.99 Add to Cart Compare Quick view PREDATOR 420 | sku: NR_NRROCK-SM420-13 Roller Rockers 1.3 Ratio Predator 420 HEMI Predator 420cc 1.3 Ratio Rocker Arms with shaft-mounted roller tip Fits Predator 420 Hemi engines ONLY. Will not fit Old Style 420s or Hondas. MSRP: Now: $169.99 View Details Compare Quick view PREDATOR 420 | sku: NR_VC420-BILLET Billet Valve Cover Predator 420 Hemi High Quality Lightweight Billet Valve cover for the Predator 420 HemiExtra Tall to clear Roller Rockers Includes Pulse fittings and bolts. BEST COVER ON THE MARKET! Due to increased height, may cause interference with stock exhaust (aftermarket header... MSRP: Now: $99.99 Add to Cart Compare Quick view Predator | sku: NR_CHAMP390 Champion Shaft Mounted 1.1:1 Rocker Arms GX390 Predator 420 These are the famous "Champion" HD Shaft Rockers! They are arguably the best bang for your buck when it comes to valve train stability. A Shaft-Rocker eliminates the need for a guide plate and prevents the rocker arms from walking side-side. Furthermore,... MSRP: Now: $28.99 Add to Cart Compare Quick view NR RACING | sku: NR_4299NR-1 Lash caps, 6.5 mm, Hardened for Stainless Valves (GX270 & GX390), Pair Lash cap for Racing Valves for 6.5 mm (GX390 and 13 hp) stems. Used to correct Valve Train Geometry (Required with Roller Rockers), Pair MSRP: Now: $9.99 View Details Compare Quick view NR RACING | sku: NR_MD016483 Split Keepers for Stainless Valves with 6.5mm Stems Split Lock Keepers for Aluminum Retainers for 6.5mm Stainless Valves (GX270, GX390, and 13/15 hp Clones) Sold as a pair (2 keepers) to do 1 Valve MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_DLRET-390-ALUM Aluminum Retainer for 6.5 mm Valves Aluminum Retainer for use with split keepers. Use with HD/Dual Springs & SS Valves. 6.5mm Valve Stem RETAINERS ARE SOLD INDIVIDUALLY - 2 REQUIRED PER MOTOR KEEPERS ARE NOT INCLUDED - ORDER SEPARATE Use Keeper set part# NR_MD016483 MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_VAL32-65-3465 Stainless Valve 31.5 mm x 6.5 mm 31.5mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390 Oversize Exhaust Valves and many 13/15 HP OHV Motors. Note: Valve may be coated or un-coated and... MSRP: Now: $31.99 View Details Compare Quick view NR RACING | sku: NR_VAL35-65-3465 Stainless Valve 35 mm x 6.5 mm 35mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390/Predator 420 Intake valve. Measure the existing valve before purchasing as they may be different... MSRP: Now: $31.99 View Details Compare Quick view Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves Stock Replacement valve set for 420 Predators, 38mm Intake, 34mm ExhaustIncludes Retainers and keepers SPRINGS NOT INCLUDED (pic for reference only)New Take Off MSRP: $31.99 Now: $18.42 View Details Compare Quick view Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda Head is finished but does not include Valves, Studs, springs, guide plates, seals, etc. For Honda GX390 and Predator 420 NON-HEMI MSRP: Now: $71.99 Add to Cart Compare Quick view sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare Heads are finished and ready for assembly, but do not include Valves, Studs, springs, guide plates, seals, etc. Picture is for reference only MSRP: Now: $69.99 Add to Cart Compare Quick view sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block Adjustable Push Rod tool for checking for proper pushrod length. Adjust from approx 1.2". Must be used with stock springs. perfect for determining proper pushrod length and valve geometry. DO NOT RUN IN MOTOR MSRP: Now: $29.99 Add to Cart Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details PREDATOR 420 | sku: NR_VC420-BILLET Billet Valve Cover Predator 420 Hemi MSRP: Now: $99.99 Add to Cart Compare Quick view Details Predator | sku: NR_CHAMP390 Champion Shaft Mounted 1.1:1 Rocker Arms GX390 Predator 420 MSRP: Now: $28.99 Add to Cart Compare Quick view Details NR RACING | sku: NR_4299NR-1 Lash caps, 6.5 mm, Hardened for Stainless Valves (GX270 & GX390), Pair MSRP: Now: $9.99 View Details Compare Quick view Details NR RACING | sku: NR_MD016483 Split Keepers for Stainless Valves with 6.5mm Stems MSRP: Now: $6.99 Add to Cart Compare Quick view Details NR RACING | sku: NR_DLRET-390-ALUM Aluminum Retainer for 6.5 mm Valves MSRP: Now: $6.99 Add to Cart Compare Quick view Details NR RACING | sku: NR_VAL32-65-3465 Stainless Valve 31.5 mm x 6.5 mm MSRP: Now: $31.99 View Details Compare Quick view Details NR RACING | sku: NR_VAL35-65-3465 Stainless Valve 35 mm x 6.5 mm MSRP: Now: $31.99 View Details Compare Quick view Details Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves MSRP: $31.99 Now: $18.42 View Details Compare SPECIAL ORDER Quick view Details Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda MSRP: Now: $71.99 Add to Cart Compare SPECIAL ORDER Quick view Details sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare MSRP: Now: $69.99 Add to Cart Compare Quick view Details sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block MSRP: Now: $29.99 Add to Cart Compare Quick view PREDATOR 420 | sku: NR_NRROCK-SM420-13 Roller Rockers 1.3 Ratio Predator 420 HEMI Predator 420cc 1.3 Ratio Rocker Arms with shaft-mounted roller tip Fits Predator 420 Hemi engines ONLY. Will not fit Old Style 420s or Hondas. MSRP: Now: $169.99 View Details Compare Quick view PREDATOR 420 | sku: NR_VC420-BILLET Billet Valve Cover Predator 420 Hemi High Quality Lightweight Billet Valve cover for the Predator 420 HemiExtra Tall to clear Roller Rockers Includes Pulse fittings and bolts. BEST COVER ON THE MARKET! Due to increased height, may cause interference with stock exhaust (aftermarket header... MSRP: Now: $99.99 Add to Cart Compare Quick view Predator | sku: NR_CHAMP390 Champion Shaft Mounted 1.1:1 Rocker Arms GX390 Predator 420 These are the famous "Champion" HD Shaft Rockers! They are arguably the best bang for your buck when it comes to valve train stability. A Shaft-Rocker eliminates the need for a guide plate and prevents the rocker arms from walking side-side. Furthermore,... MSRP: Now: $28.99 Add to Cart Compare Quick view NR RACING | sku: NR_4299NR-1 Lash caps, 6.5 mm, Hardened for Stainless Valves (GX270 & GX390), Pair Lash cap for Racing Valves for 6.5 mm (GX390 and 13 hp) stems. Used to correct Valve Train Geometry (Required with Roller Rockers), Pair MSRP: Now: $9.99 View Details Compare Quick view NR RACING | sku: NR_MD016483 Split Keepers for Stainless Valves with 6.5mm Stems Split Lock Keepers for Aluminum Retainers for 6.5mm Stainless Valves (GX270, GX390, and 13/15 hp Clones) Sold as a pair (2 keepers) to do 1 Valve MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_DLRET-390-ALUM Aluminum Retainer for 6.5 mm Valves Aluminum Retainer for use with split keepers. Use with HD/Dual Springs & SS Valves. 6.5mm Valve Stem RETAINERS ARE SOLD INDIVIDUALLY - 2 REQUIRED PER MOTOR KEEPERS ARE NOT INCLUDED - ORDER SEPARATE Use Keeper set part# NR_MD016483 MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_VAL32-65-3465 Stainless Valve 31.5 mm x 6.5 mm 31.5mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390 Oversize Exhaust Valves and many 13/15 HP OHV Motors. Note: Valve may be coated or un-coated and... MSRP: Now: $31.99 View Details Compare Quick view NR RACING | sku: NR_VAL35-65-3465 Stainless Valve 35 mm x 6.5 mm 35mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390/Predator 420 Intake valve. Measure the existing valve before purchasing as they may be different... MSRP: Now: $31.99 View Details Compare Quick view Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves Stock Replacement valve set for 420 Predators, 38mm Intake, 34mm ExhaustIncludes Retainers and keepers SPRINGS NOT INCLUDED (pic for reference only)New Take Off MSRP: $31.99 Now: $18.42 View Details Compare Quick view Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda Head is finished but does not include Valves, Studs, springs, guide plates, seals, etc. For Honda GX390 and Predator 420 NON-HEMI MSRP: Now: $71.99 Add to Cart Compare Quick view sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare Heads are finished and ready for assembly, but do not include Valves, Studs, springs, guide plates, seals, etc. Picture is for reference only MSRP: Now: $69.99 Add to Cart Compare Quick view sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block Adjustable Push Rod tool for checking for proper pushrod length. Adjust from approx 1.2". Must be used with stock springs. perfect for determining proper pushrod length and valve geometry. DO NOT RUN IN MOTOR MSRP: Now: $29.99 Add to Cart Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details Predator | sku: NR_CHAMP390 Champion Shaft Mounted 1.1:1 Rocker Arms GX390 Predator 420 MSRP: Now: $28.99 Add to Cart Compare Quick view Details NR RACING | sku: NR_4299NR-1 Lash caps, 6.5 mm, Hardened for Stainless Valves (GX270 & GX390), Pair MSRP: Now: $9.99 View Details Compare Quick view Details NR RACING | sku: NR_MD016483 Split Keepers for Stainless Valves with 6.5mm Stems MSRP: Now: $6.99 Add to Cart Compare Quick view Details NR RACING | sku: NR_DLRET-390-ALUM Aluminum Retainer for 6.5 mm Valves MSRP: Now: $6.99 Add to Cart Compare Quick view Details NR RACING | sku: NR_VAL32-65-3465 Stainless Valve 31.5 mm x 6.5 mm MSRP: Now: $31.99 View Details Compare Quick view Details NR RACING | sku: NR_VAL35-65-3465 Stainless Valve 35 mm x 6.5 mm MSRP: Now: $31.99 View Details Compare Quick view Details Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves MSRP: $31.99 Now: $18.42 View Details Compare SPECIAL ORDER Quick view Details Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda MSRP: Now: $71.99 Add to Cart Compare SPECIAL ORDER Quick view Details sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare MSRP: Now: $69.99 Add to Cart Compare Quick view Details sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block MSRP: Now: $29.99 Add to Cart Compare Quick view PREDATOR 420 | sku: NR_NRROCK-SM420-13 Roller Rockers 1.3 Ratio Predator 420 HEMI Predator 420cc 1.3 Ratio Rocker Arms with shaft-mounted roller tip Fits Predator 420 Hemi engines ONLY. Will not fit Old Style 420s or Hondas. MSRP: Now: $169.99 View Details Compare Quick view PREDATOR 420 | sku: NR_VC420-BILLET Billet Valve Cover Predator 420 Hemi High Quality Lightweight Billet Valve cover for the Predator 420 HemiExtra Tall to clear Roller Rockers Includes Pulse fittings and bolts. BEST COVER ON THE MARKET! Due to increased height, may cause interference with stock exhaust (aftermarket header... MSRP: Now: $99.99 Add to Cart Compare Quick view Predator | sku: NR_CHAMP390 Champion Shaft Mounted 1.1:1 Rocker Arms GX390 Predator 420 These are the famous "Champion" HD Shaft Rockers! They are arguably the best bang for your buck when it comes to valve train stability. A Shaft-Rocker eliminates the need for a guide plate and prevents the rocker arms from walking side-side. Furthermore,... MSRP: Now: $28.99 Add to Cart Compare Quick view NR RACING | sku: NR_4299NR-1 Lash caps, 6.5 mm, Hardened for Stainless Valves (GX270 & GX390), Pair Lash cap for Racing Valves for 6.5 mm (GX390 and 13 hp) stems. Used to correct Valve Train Geometry (Required with Roller Rockers), Pair MSRP: Now: $9.99 View Details Compare Quick view NR RACING | sku: NR_MD016483 Split Keepers for Stainless Valves with 6.5mm Stems Split Lock Keepers for Aluminum Retainers for 6.5mm Stainless Valves (GX270, GX390, and 13/15 hp Clones) Sold as a pair (2 keepers) to do 1 Valve MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_DLRET-390-ALUM Aluminum Retainer for 6.5 mm Valves Aluminum Retainer for use with split keepers. Use with HD/Dual Springs & SS Valves. 6.5mm Valve Stem RETAINERS ARE SOLD INDIVIDUALLY - 2 REQUIRED PER MOTOR KEEPERS ARE NOT INCLUDED - ORDER SEPARATE Use Keeper set part# NR_MD016483 MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_VAL32-65-3465 Stainless Valve 31.5 mm x 6.5 mm 31.5mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390 Oversize Exhaust Valves and many 13/15 HP OHV Motors. Note: Valve may be coated or un-coated and... MSRP: Now: $31.99 View Details Compare Quick view NR RACING | sku: NR_VAL35-65-3465 Stainless Valve 35 mm x 6.5 mm 35mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390/Predator 420 Intake valve. Measure the existing valve before purchasing as they may be different... MSRP: Now: $31.99 View Details Compare Quick view Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves Stock Replacement valve set for 420 Predators, 38mm Intake, 34mm ExhaustIncludes Retainers and keepers SPRINGS NOT INCLUDED (pic for reference only)New Take Off MSRP: $31.99 Now: $18.42 View Details Compare Quick view Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda Head is finished but does not include Valves, Studs, springs, guide plates, seals, etc. For Honda GX390 and Predator 420 NON-HEMI MSRP: Now: $71.99 Add to Cart Compare Quick view sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare Heads are finished and ready for assembly, but do not include Valves, Studs, springs, guide plates, seals, etc. Picture is for reference only MSRP: Now: $69.99 Add to Cart Compare Quick view sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block Adjustable Push Rod tool for checking for proper pushrod length. Adjust from approx 1.2". Must be used with stock springs. perfect for determining proper pushrod length and valve geometry. DO NOT RUN IN MOTOR MSRP: Now: $29.99 Add to Cart Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details NR RACING | sku: NR_4299NR-1 Lash caps, 6.5 mm, Hardened for Stainless Valves (GX270 & GX390), Pair MSRP: Now: $9.99 View Details Compare Quick view Details NR RACING | sku: NR_MD016483 Split Keepers for Stainless Valves with 6.5mm Stems MSRP: Now: $6.99 Add to Cart Compare Quick view Details NR RACING | sku: NR_DLRET-390-ALUM Aluminum Retainer for 6.5 mm Valves MSRP: Now: $6.99 Add to Cart Compare Quick view Details NR RACING | sku: NR_VAL32-65-3465 Stainless Valve 31.5 mm x 6.5 mm MSRP: Now: $31.99 View Details Compare Quick view Details NR RACING | sku: NR_VAL35-65-3465 Stainless Valve 35 mm x 6.5 mm MSRP: Now: $31.99 View Details Compare Quick view Details Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves MSRP: $31.99 Now: $18.42 View Details Compare SPECIAL ORDER Quick view Details Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda MSRP: Now: $71.99 Add to Cart Compare SPECIAL ORDER Quick view Details sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare MSRP: Now: $69.99 Add to Cart Compare Quick view Details sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block MSRP: Now: $29.99 Add to Cart Compare Quick view PREDATOR 420 | sku: NR_NRROCK-SM420-13 Roller Rockers 1.3 Ratio Predator 420 HEMI Predator 420cc 1.3 Ratio Rocker Arms with shaft-mounted roller tip Fits Predator 420 Hemi engines ONLY. Will not fit Old Style 420s or Hondas. MSRP: Now: $169.99 View Details Compare Quick view PREDATOR 420 | sku: NR_VC420-BILLET Billet Valve Cover Predator 420 Hemi High Quality Lightweight Billet Valve cover for the Predator 420 HemiExtra Tall to clear Roller Rockers Includes Pulse fittings and bolts. BEST COVER ON THE MARKET! Due to increased height, may cause interference with stock exhaust (aftermarket header... MSRP: Now: $99.99 Add to Cart Compare Quick view Predator | sku: NR_CHAMP390 Champion Shaft Mounted 1.1:1 Rocker Arms GX390 Predator 420 These are the famous "Champion" HD Shaft Rockers! They are arguably the best bang for your buck when it comes to valve train stability. A Shaft-Rocker eliminates the need for a guide plate and prevents the rocker arms from walking side-side. Furthermore,... MSRP: Now: $28.99 Add to Cart Compare Quick view NR RACING | sku: NR_4299NR-1 Lash caps, 6.5 mm, Hardened for Stainless Valves (GX270 & GX390), Pair Lash cap for Racing Valves for 6.5 mm (GX390 and 13 hp) stems. Used to correct Valve Train Geometry (Required with Roller Rockers), Pair MSRP: Now: $9.99 View Details Compare Quick view NR RACING | sku: NR_MD016483 Split Keepers for Stainless Valves with 6.5mm Stems Split Lock Keepers for Aluminum Retainers for 6.5mm Stainless Valves (GX270, GX390, and 13/15 hp Clones) Sold as a pair (2 keepers) to do 1 Valve MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_DLRET-390-ALUM Aluminum Retainer for 6.5 mm Valves Aluminum Retainer for use with split keepers. Use with HD/Dual Springs & SS Valves. 6.5mm Valve Stem RETAINERS ARE SOLD INDIVIDUALLY - 2 REQUIRED PER MOTOR KEEPERS ARE NOT INCLUDED - ORDER SEPARATE Use Keeper set part# NR_MD016483 MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_VAL32-65-3465 Stainless Valve 31.5 mm x 6.5 mm 31.5mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390 Oversize Exhaust Valves and many 13/15 HP OHV Motors. Note: Valve may be coated or un-coated and... MSRP: Now: $31.99 View Details Compare Quick view NR RACING | sku: NR_VAL35-65-3465 Stainless Valve 35 mm x 6.5 mm 35mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390/Predator 420 Intake valve. Measure the existing valve before purchasing as they may be different... MSRP: Now: $31.99 View Details Compare Quick view Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves Stock Replacement valve set for 420 Predators, 38mm Intake, 34mm ExhaustIncludes Retainers and keepers SPRINGS NOT INCLUDED (pic for reference only)New Take Off MSRP: $31.99 Now: $18.42 View Details Compare Quick view Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda Head is finished but does not include Valves, Studs, springs, guide plates, seals, etc. For Honda GX390 and Predator 420 NON-HEMI MSRP: Now: $71.99 Add to Cart Compare Quick view sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare Heads are finished and ready for assembly, but do not include Valves, Studs, springs, guide plates, seals, etc. Picture is for reference only MSRP: Now: $69.99 Add to Cart Compare Quick view sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block Adjustable Push Rod tool for checking for proper pushrod length. Adjust from approx 1.2". Must be used with stock springs. perfect for determining proper pushrod length and valve geometry. DO NOT RUN IN MOTOR MSRP: Now: $29.99 Add to Cart Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details NR RACING | sku: NR_MD016483 Split Keepers for Stainless Valves with 6.5mm Stems MSRP: Now: $6.99 Add to Cart Compare Quick view Details NR RACING | sku: NR_DLRET-390-ALUM Aluminum Retainer for 6.5 mm Valves MSRP: Now: $6.99 Add to Cart Compare Quick view Details NR RACING | sku: NR_VAL32-65-3465 Stainless Valve 31.5 mm x 6.5 mm MSRP: Now: $31.99 View Details Compare Quick view Details NR RACING | sku: NR_VAL35-65-3465 Stainless Valve 35 mm x 6.5 mm MSRP: Now: $31.99 View Details Compare Quick view Details Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves MSRP: $31.99 Now: $18.42 View Details Compare SPECIAL ORDER Quick view Details Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda MSRP: Now: $71.99 Add to Cart Compare SPECIAL ORDER Quick view Details sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare MSRP: Now: $69.99 Add to Cart Compare Quick view Details sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block MSRP: Now: $29.99 Add to Cart Compare Quick view PREDATOR 420 | sku: NR_NRROCK-SM420-13 Roller Rockers 1.3 Ratio Predator 420 HEMI Predator 420cc 1.3 Ratio Rocker Arms with shaft-mounted roller tip Fits Predator 420 Hemi engines ONLY. Will not fit Old Style 420s or Hondas. MSRP: Now: $169.99 View Details Compare Quick view PREDATOR 420 | sku: NR_VC420-BILLET Billet Valve Cover Predator 420 Hemi High Quality Lightweight Billet Valve cover for the Predator 420 HemiExtra Tall to clear Roller Rockers Includes Pulse fittings and bolts. BEST COVER ON THE MARKET! Due to increased height, may cause interference with stock exhaust (aftermarket header... MSRP: Now: $99.99 Add to Cart Compare Quick view Predator | sku: NR_CHAMP390 Champion Shaft Mounted 1.1:1 Rocker Arms GX390 Predator 420 These are the famous "Champion" HD Shaft Rockers! They are arguably the best bang for your buck when it comes to valve train stability. A Shaft-Rocker eliminates the need for a guide plate and prevents the rocker arms from walking side-side. Furthermore,... MSRP: Now: $28.99 Add to Cart Compare Quick view NR RACING | sku: NR_4299NR-1 Lash caps, 6.5 mm, Hardened for Stainless Valves (GX270 & GX390), Pair Lash cap for Racing Valves for 6.5 mm (GX390 and 13 hp) stems. Used to correct Valve Train Geometry (Required with Roller Rockers), Pair MSRP: Now: $9.99 View Details Compare Quick view NR RACING | sku: NR_MD016483 Split Keepers for Stainless Valves with 6.5mm Stems Split Lock Keepers for Aluminum Retainers for 6.5mm Stainless Valves (GX270, GX390, and 13/15 hp Clones) Sold as a pair (2 keepers) to do 1 Valve MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_DLRET-390-ALUM Aluminum Retainer for 6.5 mm Valves Aluminum Retainer for use with split keepers. Use with HD/Dual Springs & SS Valves. 6.5mm Valve Stem RETAINERS ARE SOLD INDIVIDUALLY - 2 REQUIRED PER MOTOR KEEPERS ARE NOT INCLUDED - ORDER SEPARATE Use Keeper set part# NR_MD016483 MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_VAL32-65-3465 Stainless Valve 31.5 mm x 6.5 mm 31.5mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390 Oversize Exhaust Valves and many 13/15 HP OHV Motors. Note: Valve may be coated or un-coated and... MSRP: Now: $31.99 View Details Compare Quick view NR RACING | sku: NR_VAL35-65-3465 Stainless Valve 35 mm x 6.5 mm 35mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390/Predator 420 Intake valve. Measure the existing valve before purchasing as they may be different... MSRP: Now: $31.99 View Details Compare Quick view Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves Stock Replacement valve set for 420 Predators, 38mm Intake, 34mm ExhaustIncludes Retainers and keepers SPRINGS NOT INCLUDED (pic for reference only)New Take Off MSRP: $31.99 Now: $18.42 View Details Compare Quick view Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda Head is finished but does not include Valves, Studs, springs, guide plates, seals, etc. For Honda GX390 and Predator 420 NON-HEMI MSRP: Now: $71.99 Add to Cart Compare Quick view sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare Heads are finished and ready for assembly, but do not include Valves, Studs, springs, guide plates, seals, etc. Picture is for reference only MSRP: Now: $69.99 Add to Cart Compare Quick view sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block Adjustable Push Rod tool for checking for proper pushrod length. Adjust from approx 1.2". Must be used with stock springs. perfect for determining proper pushrod length and valve geometry. DO NOT RUN IN MOTOR MSRP: Now: $29.99 Add to Cart Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details NR RACING | sku: NR_DLRET-390-ALUM Aluminum Retainer for 6.5 mm Valves MSRP: Now: $6.99 Add to Cart Compare Quick view Details NR RACING | sku: NR_VAL32-65-3465 Stainless Valve 31.5 mm x 6.5 mm MSRP: Now: $31.99 View Details Compare Quick view Details NR RACING | sku: NR_VAL35-65-3465 Stainless Valve 35 mm x 6.5 mm MSRP: Now: $31.99 View Details Compare Quick view Details Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves MSRP: $31.99 Now: $18.42 View Details Compare SPECIAL ORDER Quick view Details Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda MSRP: Now: $71.99 Add to Cart Compare SPECIAL ORDER Quick view Details sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare MSRP: Now: $69.99 Add to Cart Compare Quick view Details sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block MSRP: Now: $29.99 Add to Cart Compare Quick view PREDATOR 420 | sku: NR_NRROCK-SM420-13 Roller Rockers 1.3 Ratio Predator 420 HEMI Predator 420cc 1.3 Ratio Rocker Arms with shaft-mounted roller tip Fits Predator 420 Hemi engines ONLY. Will not fit Old Style 420s or Hondas. MSRP: Now: $169.99 View Details Compare Quick view PREDATOR 420 | sku: NR_VC420-BILLET Billet Valve Cover Predator 420 Hemi High Quality Lightweight Billet Valve cover for the Predator 420 HemiExtra Tall to clear Roller Rockers Includes Pulse fittings and bolts. BEST COVER ON THE MARKET! Due to increased height, may cause interference with stock exhaust (aftermarket header... MSRP: Now: $99.99 Add to Cart Compare Quick view Predator | sku: NR_CHAMP390 Champion Shaft Mounted 1.1:1 Rocker Arms GX390 Predator 420 These are the famous "Champion" HD Shaft Rockers! They are arguably the best bang for your buck when it comes to valve train stability. A Shaft-Rocker eliminates the need for a guide plate and prevents the rocker arms from walking side-side. Furthermore,... MSRP: Now: $28.99 Add to Cart Compare Quick view NR RACING | sku: NR_4299NR-1 Lash caps, 6.5 mm, Hardened for Stainless Valves (GX270 & GX390), Pair Lash cap for Racing Valves for 6.5 mm (GX390 and 13 hp) stems. Used to correct Valve Train Geometry (Required with Roller Rockers), Pair MSRP: Now: $9.99 View Details Compare Quick view NR RACING | sku: NR_MD016483 Split Keepers for Stainless Valves with 6.5mm Stems Split Lock Keepers for Aluminum Retainers for 6.5mm Stainless Valves (GX270, GX390, and 13/15 hp Clones) Sold as a pair (2 keepers) to do 1 Valve MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_DLRET-390-ALUM Aluminum Retainer for 6.5 mm Valves Aluminum Retainer for use with split keepers. Use with HD/Dual Springs & SS Valves. 6.5mm Valve Stem RETAINERS ARE SOLD INDIVIDUALLY - 2 REQUIRED PER MOTOR KEEPERS ARE NOT INCLUDED - ORDER SEPARATE Use Keeper set part# NR_MD016483 MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_VAL32-65-3465 Stainless Valve 31.5 mm x 6.5 mm 31.5mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390 Oversize Exhaust Valves and many 13/15 HP OHV Motors. Note: Valve may be coated or un-coated and... MSRP: Now: $31.99 View Details Compare Quick view NR RACING | sku: NR_VAL35-65-3465 Stainless Valve 35 mm x 6.5 mm 35mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390/Predator 420 Intake valve. Measure the existing valve before purchasing as they may be different... MSRP: Now: $31.99 View Details Compare Quick view Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves Stock Replacement valve set for 420 Predators, 38mm Intake, 34mm ExhaustIncludes Retainers and keepers SPRINGS NOT INCLUDED (pic for reference only)New Take Off MSRP: $31.99 Now: $18.42 View Details Compare Quick view Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda Head is finished but does not include Valves, Studs, springs, guide plates, seals, etc. For Honda GX390 and Predator 420 NON-HEMI MSRP: Now: $71.99 Add to Cart Compare Quick view sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare Heads are finished and ready for assembly, but do not include Valves, Studs, springs, guide plates, seals, etc. Picture is for reference only MSRP: Now: $69.99 Add to Cart Compare Quick view sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block Adjustable Push Rod tool for checking for proper pushrod length. Adjust from approx 1.2". Must be used with stock springs. perfect for determining proper pushrod length and valve geometry. DO NOT RUN IN MOTOR MSRP: Now: $29.99 Add to Cart Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details NR RACING | sku: NR_VAL32-65-3465 Stainless Valve 31.5 mm x 6.5 mm MSRP: Now: $31.99 View Details Compare Quick view Details NR RACING | sku: NR_VAL35-65-3465 Stainless Valve 35 mm x 6.5 mm MSRP: Now: $31.99 View Details Compare Quick view Details Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves MSRP: $31.99 Now: $18.42 View Details Compare SPECIAL ORDER Quick view Details Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda MSRP: Now: $71.99 Add to Cart Compare SPECIAL ORDER Quick view Details sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare MSRP: Now: $69.99 Add to Cart Compare Quick view Details sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block MSRP: Now: $29.99 Add to Cart Compare Quick view PREDATOR 420 | sku: NR_NRROCK-SM420-13 Roller Rockers 1.3 Ratio Predator 420 HEMI Predator 420cc 1.3 Ratio Rocker Arms with shaft-mounted roller tip Fits Predator 420 Hemi engines ONLY. Will not fit Old Style 420s or Hondas. MSRP: Now: $169.99 View Details Compare Quick view PREDATOR 420 | sku: NR_VC420-BILLET Billet Valve Cover Predator 420 Hemi High Quality Lightweight Billet Valve cover for the Predator 420 HemiExtra Tall to clear Roller Rockers Includes Pulse fittings and bolts. BEST COVER ON THE MARKET! Due to increased height, may cause interference with stock exhaust (aftermarket header... MSRP: Now: $99.99 Add to Cart Compare Quick view Predator | sku: NR_CHAMP390 Champion Shaft Mounted 1.1:1 Rocker Arms GX390 Predator 420 These are the famous "Champion" HD Shaft Rockers! They are arguably the best bang for your buck when it comes to valve train stability. A Shaft-Rocker eliminates the need for a guide plate and prevents the rocker arms from walking side-side. Furthermore,... MSRP: Now: $28.99 Add to Cart Compare Quick view NR RACING | sku: NR_4299NR-1 Lash caps, 6.5 mm, Hardened for Stainless Valves (GX270 & GX390), Pair Lash cap for Racing Valves for 6.5 mm (GX390 and 13 hp) stems. Used to correct Valve Train Geometry (Required with Roller Rockers), Pair MSRP: Now: $9.99 View Details Compare Quick view NR RACING | sku: NR_MD016483 Split Keepers for Stainless Valves with 6.5mm Stems Split Lock Keepers for Aluminum Retainers for 6.5mm Stainless Valves (GX270, GX390, and 13/15 hp Clones) Sold as a pair (2 keepers) to do 1 Valve MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_DLRET-390-ALUM Aluminum Retainer for 6.5 mm Valves Aluminum Retainer for use with split keepers. Use with HD/Dual Springs & SS Valves. 6.5mm Valve Stem RETAINERS ARE SOLD INDIVIDUALLY - 2 REQUIRED PER MOTOR KEEPERS ARE NOT INCLUDED - ORDER SEPARATE Use Keeper set part# NR_MD016483 MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_VAL32-65-3465 Stainless Valve 31.5 mm x 6.5 mm 31.5mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390 Oversize Exhaust Valves and many 13/15 HP OHV Motors. Note: Valve may be coated or un-coated and... MSRP: Now: $31.99 View Details Compare Quick view NR RACING | sku: NR_VAL35-65-3465 Stainless Valve 35 mm x 6.5 mm 35mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390/Predator 420 Intake valve. Measure the existing valve before purchasing as they may be different... MSRP: Now: $31.99 View Details Compare Quick view Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves Stock Replacement valve set for 420 Predators, 38mm Intake, 34mm ExhaustIncludes Retainers and keepers SPRINGS NOT INCLUDED (pic for reference only)New Take Off MSRP: $31.99 Now: $18.42 View Details Compare Quick view Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda Head is finished but does not include Valves, Studs, springs, guide plates, seals, etc. For Honda GX390 and Predator 420 NON-HEMI MSRP: Now: $71.99 Add to Cart Compare Quick view sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare Heads are finished and ready for assembly, but do not include Valves, Studs, springs, guide plates, seals, etc. Picture is for reference only MSRP: Now: $69.99 Add to Cart Compare Quick view sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block Adjustable Push Rod tool for checking for proper pushrod length. Adjust from approx 1.2". Must be used with stock springs. perfect for determining proper pushrod length and valve geometry. DO NOT RUN IN MOTOR MSRP: Now: $29.99 Add to Cart Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details NR RACING | sku: NR_VAL35-65-3465 Stainless Valve 35 mm x 6.5 mm MSRP: Now: $31.99 View Details Compare Quick view Details Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves MSRP: $31.99 Now: $18.42 View Details Compare SPECIAL ORDER Quick view Details Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda MSRP: Now: $71.99 Add to Cart Compare SPECIAL ORDER Quick view Details sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare MSRP: Now: $69.99 Add to Cart Compare Quick view Details sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block MSRP: Now: $29.99 Add to Cart Compare Quick view PREDATOR 420 | sku: NR_NRROCK-SM420-13 Roller Rockers 1.3 Ratio Predator 420 HEMI Predator 420cc 1.3 Ratio Rocker Arms with shaft-mounted roller tip Fits Predator 420 Hemi engines ONLY. Will not fit Old Style 420s or Hondas. MSRP: Now: $169.99 View Details Compare Quick view PREDATOR 420 | sku: NR_VC420-BILLET Billet Valve Cover Predator 420 Hemi High Quality Lightweight Billet Valve cover for the Predator 420 HemiExtra Tall to clear Roller Rockers Includes Pulse fittings and bolts. BEST COVER ON THE MARKET! Due to increased height, may cause interference with stock exhaust (aftermarket header... MSRP: Now: $99.99 Add to Cart Compare Quick view Predator | sku: NR_CHAMP390 Champion Shaft Mounted 1.1:1 Rocker Arms GX390 Predator 420 These are the famous "Champion" HD Shaft Rockers! They are arguably the best bang for your buck when it comes to valve train stability. A Shaft-Rocker eliminates the need for a guide plate and prevents the rocker arms from walking side-side. Furthermore,... MSRP: Now: $28.99 Add to Cart Compare Quick view NR RACING | sku: NR_4299NR-1 Lash caps, 6.5 mm, Hardened for Stainless Valves (GX270 & GX390), Pair Lash cap for Racing Valves for 6.5 mm (GX390 and 13 hp) stems. Used to correct Valve Train Geometry (Required with Roller Rockers), Pair MSRP: Now: $9.99 View Details Compare Quick view NR RACING | sku: NR_MD016483 Split Keepers for Stainless Valves with 6.5mm Stems Split Lock Keepers for Aluminum Retainers for 6.5mm Stainless Valves (GX270, GX390, and 13/15 hp Clones) Sold as a pair (2 keepers) to do 1 Valve MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_DLRET-390-ALUM Aluminum Retainer for 6.5 mm Valves Aluminum Retainer for use with split keepers. Use with HD/Dual Springs & SS Valves. 6.5mm Valve Stem RETAINERS ARE SOLD INDIVIDUALLY - 2 REQUIRED PER MOTOR KEEPERS ARE NOT INCLUDED - ORDER SEPARATE Use Keeper set part# NR_MD016483 MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_VAL32-65-3465 Stainless Valve 31.5 mm x 6.5 mm 31.5mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390 Oversize Exhaust Valves and many 13/15 HP OHV Motors. Note: Valve may be coated or un-coated and... MSRP: Now: $31.99 View Details Compare Quick view NR RACING | sku: NR_VAL35-65-3465 Stainless Valve 35 mm x 6.5 mm 35mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390/Predator 420 Intake valve. Measure the existing valve before purchasing as they may be different... MSRP: Now: $31.99 View Details Compare Quick view Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves Stock Replacement valve set for 420 Predators, 38mm Intake, 34mm ExhaustIncludes Retainers and keepers SPRINGS NOT INCLUDED (pic for reference only)New Take Off MSRP: $31.99 Now: $18.42 View Details Compare Quick view Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda Head is finished but does not include Valves, Studs, springs, guide plates, seals, etc. For Honda GX390 and Predator 420 NON-HEMI MSRP: Now: $71.99 Add to Cart Compare Quick view sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare Heads are finished and ready for assembly, but do not include Valves, Studs, springs, guide plates, seals, etc. Picture is for reference only MSRP: Now: $69.99 Add to Cart Compare Quick view sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block Adjustable Push Rod tool for checking for proper pushrod length. Adjust from approx 1.2". Must be used with stock springs. perfect for determining proper pushrod length and valve geometry. DO NOT RUN IN MOTOR MSRP: Now: $29.99 Add to Cart Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves MSRP: $31.99 Now: $18.42 View Details Compare SPECIAL ORDER Quick view Details Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda MSRP: Now: $71.99 Add to Cart Compare SPECIAL ORDER Quick view Details sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare MSRP: Now: $69.99 Add to Cart Compare Quick view Details sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block MSRP: Now: $29.99 Add to Cart Compare Quick view PREDATOR 420 | sku: NR_NRROCK-SM420-13 Roller Rockers 1.3 Ratio Predator 420 HEMI Predator 420cc 1.3 Ratio Rocker Arms with shaft-mounted roller tip Fits Predator 420 Hemi engines ONLY. Will not fit Old Style 420s or Hondas. MSRP: Now: $169.99 View Details Compare Quick view PREDATOR 420 | sku: NR_VC420-BILLET Billet Valve Cover Predator 420 Hemi High Quality Lightweight Billet Valve cover for the Predator 420 HemiExtra Tall to clear Roller Rockers Includes Pulse fittings and bolts. BEST COVER ON THE MARKET! Due to increased height, may cause interference with stock exhaust (aftermarket header... MSRP: Now: $99.99 Add to Cart Compare Quick view Predator | sku: NR_CHAMP390 Champion Shaft Mounted 1.1:1 Rocker Arms GX390 Predator 420 These are the famous "Champion" HD Shaft Rockers! They are arguably the best bang for your buck when it comes to valve train stability. A Shaft-Rocker eliminates the need for a guide plate and prevents the rocker arms from walking side-side. Furthermore,... MSRP: Now: $28.99 Add to Cart Compare Quick view NR RACING | sku: NR_4299NR-1 Lash caps, 6.5 mm, Hardened for Stainless Valves (GX270 & GX390), Pair Lash cap for Racing Valves for 6.5 mm (GX390 and 13 hp) stems. Used to correct Valve Train Geometry (Required with Roller Rockers), Pair MSRP: Now: $9.99 View Details Compare Quick view NR RACING | sku: NR_MD016483 Split Keepers for Stainless Valves with 6.5mm Stems Split Lock Keepers for Aluminum Retainers for 6.5mm Stainless Valves (GX270, GX390, and 13/15 hp Clones) Sold as a pair (2 keepers) to do 1 Valve MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_DLRET-390-ALUM Aluminum Retainer for 6.5 mm Valves Aluminum Retainer for use with split keepers. Use with HD/Dual Springs & SS Valves. 6.5mm Valve Stem RETAINERS ARE SOLD INDIVIDUALLY - 2 REQUIRED PER MOTOR KEEPERS ARE NOT INCLUDED - ORDER SEPARATE Use Keeper set part# NR_MD016483 MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_VAL32-65-3465 Stainless Valve 31.5 mm x 6.5 mm 31.5mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390 Oversize Exhaust Valves and many 13/15 HP OHV Motors. Note: Valve may be coated or un-coated and... MSRP: Now: $31.99 View Details Compare Quick view NR RACING | sku: NR_VAL35-65-3465 Stainless Valve 35 mm x 6.5 mm 35mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390/Predator 420 Intake valve. Measure the existing valve before purchasing as they may be different... MSRP: Now: $31.99 View Details Compare Quick view Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves Stock Replacement valve set for 420 Predators, 38mm Intake, 34mm ExhaustIncludes Retainers and keepers SPRINGS NOT INCLUDED (pic for reference only)New Take Off MSRP: $31.99 Now: $18.42 View Details Compare Quick view Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda Head is finished but does not include Valves, Studs, springs, guide plates, seals, etc. For Honda GX390 and Predator 420 NON-HEMI MSRP: Now: $71.99 Add to Cart Compare Quick view sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare Heads are finished and ready for assembly, but do not include Valves, Studs, springs, guide plates, seals, etc. Picture is for reference only MSRP: Now: $69.99 Add to Cart Compare Quick view sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block Adjustable Push Rod tool for checking for proper pushrod length. Adjust from approx 1.2". Must be used with stock springs. perfect for determining proper pushrod length and valve geometry. DO NOT RUN IN MOTOR MSRP: Now: $29.99 Add to Cart Compare 1 2 Next 1 2 Next Compare Selected × OK
SPECIAL ORDER Quick view Details Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda MSRP: Now: $71.99 Add to Cart Compare SPECIAL ORDER Quick view Details sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare MSRP: Now: $69.99 Add to Cart Compare Quick view Details sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block MSRP: Now: $29.99 Add to Cart Compare Quick view PREDATOR 420 | sku: NR_NRROCK-SM420-13 Roller Rockers 1.3 Ratio Predator 420 HEMI Predator 420cc 1.3 Ratio Rocker Arms with shaft-mounted roller tip Fits Predator 420 Hemi engines ONLY. Will not fit Old Style 420s or Hondas. MSRP: Now: $169.99 View Details Compare Quick view PREDATOR 420 | sku: NR_VC420-BILLET Billet Valve Cover Predator 420 Hemi High Quality Lightweight Billet Valve cover for the Predator 420 HemiExtra Tall to clear Roller Rockers Includes Pulse fittings and bolts. BEST COVER ON THE MARKET! Due to increased height, may cause interference with stock exhaust (aftermarket header... MSRP: Now: $99.99 Add to Cart Compare Quick view Predator | sku: NR_CHAMP390 Champion Shaft Mounted 1.1:1 Rocker Arms GX390 Predator 420 These are the famous "Champion" HD Shaft Rockers! They are arguably the best bang for your buck when it comes to valve train stability. A Shaft-Rocker eliminates the need for a guide plate and prevents the rocker arms from walking side-side. Furthermore,... MSRP: Now: $28.99 Add to Cart Compare Quick view NR RACING | sku: NR_4299NR-1 Lash caps, 6.5 mm, Hardened for Stainless Valves (GX270 & GX390), Pair Lash cap for Racing Valves for 6.5 mm (GX390 and 13 hp) stems. Used to correct Valve Train Geometry (Required with Roller Rockers), Pair MSRP: Now: $9.99 View Details Compare Quick view NR RACING | sku: NR_MD016483 Split Keepers for Stainless Valves with 6.5mm Stems Split Lock Keepers for Aluminum Retainers for 6.5mm Stainless Valves (GX270, GX390, and 13/15 hp Clones) Sold as a pair (2 keepers) to do 1 Valve MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_DLRET-390-ALUM Aluminum Retainer for 6.5 mm Valves Aluminum Retainer for use with split keepers. Use with HD/Dual Springs & SS Valves. 6.5mm Valve Stem RETAINERS ARE SOLD INDIVIDUALLY - 2 REQUIRED PER MOTOR KEEPERS ARE NOT INCLUDED - ORDER SEPARATE Use Keeper set part# NR_MD016483 MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_VAL32-65-3465 Stainless Valve 31.5 mm x 6.5 mm 31.5mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390 Oversize Exhaust Valves and many 13/15 HP OHV Motors. Note: Valve may be coated or un-coated and... MSRP: Now: $31.99 View Details Compare Quick view NR RACING | sku: NR_VAL35-65-3465 Stainless Valve 35 mm x 6.5 mm 35mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390/Predator 420 Intake valve. Measure the existing valve before purchasing as they may be different... MSRP: Now: $31.99 View Details Compare Quick view Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves Stock Replacement valve set for 420 Predators, 38mm Intake, 34mm ExhaustIncludes Retainers and keepers SPRINGS NOT INCLUDED (pic for reference only)New Take Off MSRP: $31.99 Now: $18.42 View Details Compare Quick view Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda Head is finished but does not include Valves, Studs, springs, guide plates, seals, etc. For Honda GX390 and Predator 420 NON-HEMI MSRP: Now: $71.99 Add to Cart Compare Quick view sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare Heads are finished and ready for assembly, but do not include Valves, Studs, springs, guide plates, seals, etc. Picture is for reference only MSRP: Now: $69.99 Add to Cart Compare Quick view sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block Adjustable Push Rod tool for checking for proper pushrod length. Adjust from approx 1.2". Must be used with stock springs. perfect for determining proper pushrod length and valve geometry. DO NOT RUN IN MOTOR MSRP: Now: $29.99 Add to Cart Compare 1 2 Next 1 2 Next Compare Selected × OK
SPECIAL ORDER Quick view Details sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare MSRP: Now: $69.99 Add to Cart Compare Quick view Details sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block MSRP: Now: $29.99 Add to Cart Compare Quick view PREDATOR 420 | sku: NR_NRROCK-SM420-13 Roller Rockers 1.3 Ratio Predator 420 HEMI Predator 420cc 1.3 Ratio Rocker Arms with shaft-mounted roller tip Fits Predator 420 Hemi engines ONLY. Will not fit Old Style 420s or Hondas. MSRP: Now: $169.99 View Details Compare Quick view PREDATOR 420 | sku: NR_VC420-BILLET Billet Valve Cover Predator 420 Hemi High Quality Lightweight Billet Valve cover for the Predator 420 HemiExtra Tall to clear Roller Rockers Includes Pulse fittings and bolts. BEST COVER ON THE MARKET! Due to increased height, may cause interference with stock exhaust (aftermarket header... MSRP: Now: $99.99 Add to Cart Compare Quick view Predator | sku: NR_CHAMP390 Champion Shaft Mounted 1.1:1 Rocker Arms GX390 Predator 420 These are the famous "Champion" HD Shaft Rockers! They are arguably the best bang for your buck when it comes to valve train stability. A Shaft-Rocker eliminates the need for a guide plate and prevents the rocker arms from walking side-side. Furthermore,... MSRP: Now: $28.99 Add to Cart Compare Quick view NR RACING | sku: NR_4299NR-1 Lash caps, 6.5 mm, Hardened for Stainless Valves (GX270 & GX390), Pair Lash cap for Racing Valves for 6.5 mm (GX390 and 13 hp) stems. Used to correct Valve Train Geometry (Required with Roller Rockers), Pair MSRP: Now: $9.99 View Details Compare Quick view NR RACING | sku: NR_MD016483 Split Keepers for Stainless Valves with 6.5mm Stems Split Lock Keepers for Aluminum Retainers for 6.5mm Stainless Valves (GX270, GX390, and 13/15 hp Clones) Sold as a pair (2 keepers) to do 1 Valve MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_DLRET-390-ALUM Aluminum Retainer for 6.5 mm Valves Aluminum Retainer for use with split keepers. Use with HD/Dual Springs & SS Valves. 6.5mm Valve Stem RETAINERS ARE SOLD INDIVIDUALLY - 2 REQUIRED PER MOTOR KEEPERS ARE NOT INCLUDED - ORDER SEPARATE Use Keeper set part# NR_MD016483 MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_VAL32-65-3465 Stainless Valve 31.5 mm x 6.5 mm 31.5mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390 Oversize Exhaust Valves and many 13/15 HP OHV Motors. Note: Valve may be coated or un-coated and... MSRP: Now: $31.99 View Details Compare Quick view NR RACING | sku: NR_VAL35-65-3465 Stainless Valve 35 mm x 6.5 mm 35mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390/Predator 420 Intake valve. Measure the existing valve before purchasing as they may be different... MSRP: Now: $31.99 View Details Compare Quick view Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves Stock Replacement valve set for 420 Predators, 38mm Intake, 34mm ExhaustIncludes Retainers and keepers SPRINGS NOT INCLUDED (pic for reference only)New Take Off MSRP: $31.99 Now: $18.42 View Details Compare Quick view Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda Head is finished but does not include Valves, Studs, springs, guide plates, seals, etc. For Honda GX390 and Predator 420 NON-HEMI MSRP: Now: $71.99 Add to Cart Compare Quick view sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare Heads are finished and ready for assembly, but do not include Valves, Studs, springs, guide plates, seals, etc. Picture is for reference only MSRP: Now: $69.99 Add to Cart Compare Quick view sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block Adjustable Push Rod tool for checking for proper pushrod length. Adjust from approx 1.2". Must be used with stock springs. perfect for determining proper pushrod length and valve geometry. DO NOT RUN IN MOTOR MSRP: Now: $29.99 Add to Cart Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block MSRP: Now: $29.99 Add to Cart Compare Quick view PREDATOR 420 | sku: NR_NRROCK-SM420-13 Roller Rockers 1.3 Ratio Predator 420 HEMI Predator 420cc 1.3 Ratio Rocker Arms with shaft-mounted roller tip Fits Predator 420 Hemi engines ONLY. Will not fit Old Style 420s or Hondas. MSRP: Now: $169.99 View Details Compare Quick view PREDATOR 420 | sku: NR_VC420-BILLET Billet Valve Cover Predator 420 Hemi High Quality Lightweight Billet Valve cover for the Predator 420 HemiExtra Tall to clear Roller Rockers Includes Pulse fittings and bolts. BEST COVER ON THE MARKET! Due to increased height, may cause interference with stock exhaust (aftermarket header... MSRP: Now: $99.99 Add to Cart Compare Quick view Predator | sku: NR_CHAMP390 Champion Shaft Mounted 1.1:1 Rocker Arms GX390 Predator 420 These are the famous "Champion" HD Shaft Rockers! They are arguably the best bang for your buck when it comes to valve train stability. A Shaft-Rocker eliminates the need for a guide plate and prevents the rocker arms from walking side-side. Furthermore,... MSRP: Now: $28.99 Add to Cart Compare Quick view NR RACING | sku: NR_4299NR-1 Lash caps, 6.5 mm, Hardened for Stainless Valves (GX270 & GX390), Pair Lash cap for Racing Valves for 6.5 mm (GX390 and 13 hp) stems. Used to correct Valve Train Geometry (Required with Roller Rockers), Pair MSRP: Now: $9.99 View Details Compare Quick view NR RACING | sku: NR_MD016483 Split Keepers for Stainless Valves with 6.5mm Stems Split Lock Keepers for Aluminum Retainers for 6.5mm Stainless Valves (GX270, GX390, and 13/15 hp Clones) Sold as a pair (2 keepers) to do 1 Valve MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_DLRET-390-ALUM Aluminum Retainer for 6.5 mm Valves Aluminum Retainer for use with split keepers. Use with HD/Dual Springs & SS Valves. 6.5mm Valve Stem RETAINERS ARE SOLD INDIVIDUALLY - 2 REQUIRED PER MOTOR KEEPERS ARE NOT INCLUDED - ORDER SEPARATE Use Keeper set part# NR_MD016483 MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_VAL32-65-3465 Stainless Valve 31.5 mm x 6.5 mm 31.5mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390 Oversize Exhaust Valves and many 13/15 HP OHV Motors. Note: Valve may be coated or un-coated and... MSRP: Now: $31.99 View Details Compare Quick view NR RACING | sku: NR_VAL35-65-3465 Stainless Valve 35 mm x 6.5 mm 35mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390/Predator 420 Intake valve. Measure the existing valve before purchasing as they may be different... MSRP: Now: $31.99 View Details Compare Quick view Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves Stock Replacement valve set for 420 Predators, 38mm Intake, 34mm ExhaustIncludes Retainers and keepers SPRINGS NOT INCLUDED (pic for reference only)New Take Off MSRP: $31.99 Now: $18.42 View Details Compare Quick view Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda Head is finished but does not include Valves, Studs, springs, guide plates, seals, etc. For Honda GX390 and Predator 420 NON-HEMI MSRP: Now: $71.99 Add to Cart Compare Quick view sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare Heads are finished and ready for assembly, but do not include Valves, Studs, springs, guide plates, seals, etc. Picture is for reference only MSRP: Now: $69.99 Add to Cart Compare Quick view sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block Adjustable Push Rod tool for checking for proper pushrod length. Adjust from approx 1.2". Must be used with stock springs. perfect for determining proper pushrod length and valve geometry. DO NOT RUN IN MOTOR MSRP: Now: $29.99 Add to Cart Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view PREDATOR 420 | sku: NR_NRROCK-SM420-13 Roller Rockers 1.3 Ratio Predator 420 HEMI Predator 420cc 1.3 Ratio Rocker Arms with shaft-mounted roller tip Fits Predator 420 Hemi engines ONLY. Will not fit Old Style 420s or Hondas. MSRP: Now: $169.99 View Details Compare Quick view PREDATOR 420 | sku: NR_VC420-BILLET Billet Valve Cover Predator 420 Hemi High Quality Lightweight Billet Valve cover for the Predator 420 HemiExtra Tall to clear Roller Rockers Includes Pulse fittings and bolts. BEST COVER ON THE MARKET! Due to increased height, may cause interference with stock exhaust (aftermarket header... MSRP: Now: $99.99 Add to Cart Compare Quick view Predator | sku: NR_CHAMP390 Champion Shaft Mounted 1.1:1 Rocker Arms GX390 Predator 420 These are the famous "Champion" HD Shaft Rockers! They are arguably the best bang for your buck when it comes to valve train stability. A Shaft-Rocker eliminates the need for a guide plate and prevents the rocker arms from walking side-side. Furthermore,... MSRP: Now: $28.99 Add to Cart Compare Quick view NR RACING | sku: NR_4299NR-1 Lash caps, 6.5 mm, Hardened for Stainless Valves (GX270 & GX390), Pair Lash cap for Racing Valves for 6.5 mm (GX390 and 13 hp) stems. Used to correct Valve Train Geometry (Required with Roller Rockers), Pair MSRP: Now: $9.99 View Details Compare Quick view NR RACING | sku: NR_MD016483 Split Keepers for Stainless Valves with 6.5mm Stems Split Lock Keepers for Aluminum Retainers for 6.5mm Stainless Valves (GX270, GX390, and 13/15 hp Clones) Sold as a pair (2 keepers) to do 1 Valve MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_DLRET-390-ALUM Aluminum Retainer for 6.5 mm Valves Aluminum Retainer for use with split keepers. Use with HD/Dual Springs & SS Valves. 6.5mm Valve Stem RETAINERS ARE SOLD INDIVIDUALLY - 2 REQUIRED PER MOTOR KEEPERS ARE NOT INCLUDED - ORDER SEPARATE Use Keeper set part# NR_MD016483 MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_VAL32-65-3465 Stainless Valve 31.5 mm x 6.5 mm 31.5mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390 Oversize Exhaust Valves and many 13/15 HP OHV Motors. Note: Valve may be coated or un-coated and... MSRP: Now: $31.99 View Details Compare Quick view NR RACING | sku: NR_VAL35-65-3465 Stainless Valve 35 mm x 6.5 mm 35mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390/Predator 420 Intake valve. Measure the existing valve before purchasing as they may be different... MSRP: Now: $31.99 View Details Compare Quick view Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves Stock Replacement valve set for 420 Predators, 38mm Intake, 34mm ExhaustIncludes Retainers and keepers SPRINGS NOT INCLUDED (pic for reference only)New Take Off MSRP: $31.99 Now: $18.42 View Details Compare Quick view Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda Head is finished but does not include Valves, Studs, springs, guide plates, seals, etc. For Honda GX390 and Predator 420 NON-HEMI MSRP: Now: $71.99 Add to Cart Compare Quick view sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare Heads are finished and ready for assembly, but do not include Valves, Studs, springs, guide plates, seals, etc. Picture is for reference only MSRP: Now: $69.99 Add to Cart Compare Quick view sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block Adjustable Push Rod tool for checking for proper pushrod length. Adjust from approx 1.2". Must be used with stock springs. perfect for determining proper pushrod length and valve geometry. DO NOT RUN IN MOTOR MSRP: Now: $29.99 Add to Cart Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view PREDATOR 420 | sku: NR_VC420-BILLET Billet Valve Cover Predator 420 Hemi High Quality Lightweight Billet Valve cover for the Predator 420 HemiExtra Tall to clear Roller Rockers Includes Pulse fittings and bolts. BEST COVER ON THE MARKET! Due to increased height, may cause interference with stock exhaust (aftermarket header... MSRP: Now: $99.99 Add to Cart Compare Quick view Predator | sku: NR_CHAMP390 Champion Shaft Mounted 1.1:1 Rocker Arms GX390 Predator 420 These are the famous "Champion" HD Shaft Rockers! They are arguably the best bang for your buck when it comes to valve train stability. A Shaft-Rocker eliminates the need for a guide plate and prevents the rocker arms from walking side-side. Furthermore,... MSRP: Now: $28.99 Add to Cart Compare Quick view NR RACING | sku: NR_4299NR-1 Lash caps, 6.5 mm, Hardened for Stainless Valves (GX270 & GX390), Pair Lash cap for Racing Valves for 6.5 mm (GX390 and 13 hp) stems. Used to correct Valve Train Geometry (Required with Roller Rockers), Pair MSRP: Now: $9.99 View Details Compare Quick view NR RACING | sku: NR_MD016483 Split Keepers for Stainless Valves with 6.5mm Stems Split Lock Keepers for Aluminum Retainers for 6.5mm Stainless Valves (GX270, GX390, and 13/15 hp Clones) Sold as a pair (2 keepers) to do 1 Valve MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_DLRET-390-ALUM Aluminum Retainer for 6.5 mm Valves Aluminum Retainer for use with split keepers. Use with HD/Dual Springs & SS Valves. 6.5mm Valve Stem RETAINERS ARE SOLD INDIVIDUALLY - 2 REQUIRED PER MOTOR KEEPERS ARE NOT INCLUDED - ORDER SEPARATE Use Keeper set part# NR_MD016483 MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_VAL32-65-3465 Stainless Valve 31.5 mm x 6.5 mm 31.5mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390 Oversize Exhaust Valves and many 13/15 HP OHV Motors. Note: Valve may be coated or un-coated and... MSRP: Now: $31.99 View Details Compare Quick view NR RACING | sku: NR_VAL35-65-3465 Stainless Valve 35 mm x 6.5 mm 35mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390/Predator 420 Intake valve. Measure the existing valve before purchasing as they may be different... MSRP: Now: $31.99 View Details Compare Quick view Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves Stock Replacement valve set for 420 Predators, 38mm Intake, 34mm ExhaustIncludes Retainers and keepers SPRINGS NOT INCLUDED (pic for reference only)New Take Off MSRP: $31.99 Now: $18.42 View Details Compare Quick view Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda Head is finished but does not include Valves, Studs, springs, guide plates, seals, etc. For Honda GX390 and Predator 420 NON-HEMI MSRP: Now: $71.99 Add to Cart Compare Quick view sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare Heads are finished and ready for assembly, but do not include Valves, Studs, springs, guide plates, seals, etc. Picture is for reference only MSRP: Now: $69.99 Add to Cart Compare Quick view sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block Adjustable Push Rod tool for checking for proper pushrod length. Adjust from approx 1.2". Must be used with stock springs. perfect for determining proper pushrod length and valve geometry. DO NOT RUN IN MOTOR MSRP: Now: $29.99 Add to Cart Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Predator | sku: NR_CHAMP390 Champion Shaft Mounted 1.1:1 Rocker Arms GX390 Predator 420 These are the famous "Champion" HD Shaft Rockers! They are arguably the best bang for your buck when it comes to valve train stability. A Shaft-Rocker eliminates the need for a guide plate and prevents the rocker arms from walking side-side. Furthermore,... MSRP: Now: $28.99 Add to Cart Compare Quick view NR RACING | sku: NR_4299NR-1 Lash caps, 6.5 mm, Hardened for Stainless Valves (GX270 & GX390), Pair Lash cap for Racing Valves for 6.5 mm (GX390 and 13 hp) stems. Used to correct Valve Train Geometry (Required with Roller Rockers), Pair MSRP: Now: $9.99 View Details Compare Quick view NR RACING | sku: NR_MD016483 Split Keepers for Stainless Valves with 6.5mm Stems Split Lock Keepers for Aluminum Retainers for 6.5mm Stainless Valves (GX270, GX390, and 13/15 hp Clones) Sold as a pair (2 keepers) to do 1 Valve MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_DLRET-390-ALUM Aluminum Retainer for 6.5 mm Valves Aluminum Retainer for use with split keepers. Use with HD/Dual Springs & SS Valves. 6.5mm Valve Stem RETAINERS ARE SOLD INDIVIDUALLY - 2 REQUIRED PER MOTOR KEEPERS ARE NOT INCLUDED - ORDER SEPARATE Use Keeper set part# NR_MD016483 MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_VAL32-65-3465 Stainless Valve 31.5 mm x 6.5 mm 31.5mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390 Oversize Exhaust Valves and many 13/15 HP OHV Motors. Note: Valve may be coated or un-coated and... MSRP: Now: $31.99 View Details Compare Quick view NR RACING | sku: NR_VAL35-65-3465 Stainless Valve 35 mm x 6.5 mm 35mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390/Predator 420 Intake valve. Measure the existing valve before purchasing as they may be different... MSRP: Now: $31.99 View Details Compare Quick view Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves Stock Replacement valve set for 420 Predators, 38mm Intake, 34mm ExhaustIncludes Retainers and keepers SPRINGS NOT INCLUDED (pic for reference only)New Take Off MSRP: $31.99 Now: $18.42 View Details Compare Quick view Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda Head is finished but does not include Valves, Studs, springs, guide plates, seals, etc. For Honda GX390 and Predator 420 NON-HEMI MSRP: Now: $71.99 Add to Cart Compare Quick view sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare Heads are finished and ready for assembly, but do not include Valves, Studs, springs, guide plates, seals, etc. Picture is for reference only MSRP: Now: $69.99 Add to Cart Compare Quick view sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block Adjustable Push Rod tool for checking for proper pushrod length. Adjust from approx 1.2". Must be used with stock springs. perfect for determining proper pushrod length and valve geometry. DO NOT RUN IN MOTOR MSRP: Now: $29.99 Add to Cart Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view NR RACING | sku: NR_4299NR-1 Lash caps, 6.5 mm, Hardened for Stainless Valves (GX270 & GX390), Pair Lash cap for Racing Valves for 6.5 mm (GX390 and 13 hp) stems. Used to correct Valve Train Geometry (Required with Roller Rockers), Pair MSRP: Now: $9.99 View Details Compare Quick view NR RACING | sku: NR_MD016483 Split Keepers for Stainless Valves with 6.5mm Stems Split Lock Keepers for Aluminum Retainers for 6.5mm Stainless Valves (GX270, GX390, and 13/15 hp Clones) Sold as a pair (2 keepers) to do 1 Valve MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_DLRET-390-ALUM Aluminum Retainer for 6.5 mm Valves Aluminum Retainer for use with split keepers. Use with HD/Dual Springs & SS Valves. 6.5mm Valve Stem RETAINERS ARE SOLD INDIVIDUALLY - 2 REQUIRED PER MOTOR KEEPERS ARE NOT INCLUDED - ORDER SEPARATE Use Keeper set part# NR_MD016483 MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_VAL32-65-3465 Stainless Valve 31.5 mm x 6.5 mm 31.5mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390 Oversize Exhaust Valves and many 13/15 HP OHV Motors. Note: Valve may be coated or un-coated and... MSRP: Now: $31.99 View Details Compare Quick view NR RACING | sku: NR_VAL35-65-3465 Stainless Valve 35 mm x 6.5 mm 35mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390/Predator 420 Intake valve. Measure the existing valve before purchasing as they may be different... MSRP: Now: $31.99 View Details Compare Quick view Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves Stock Replacement valve set for 420 Predators, 38mm Intake, 34mm ExhaustIncludes Retainers and keepers SPRINGS NOT INCLUDED (pic for reference only)New Take Off MSRP: $31.99 Now: $18.42 View Details Compare Quick view Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda Head is finished but does not include Valves, Studs, springs, guide plates, seals, etc. For Honda GX390 and Predator 420 NON-HEMI MSRP: Now: $71.99 Add to Cart Compare Quick view sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare Heads are finished and ready for assembly, but do not include Valves, Studs, springs, guide plates, seals, etc. Picture is for reference only MSRP: Now: $69.99 Add to Cart Compare Quick view sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block Adjustable Push Rod tool for checking for proper pushrod length. Adjust from approx 1.2". Must be used with stock springs. perfect for determining proper pushrod length and valve geometry. DO NOT RUN IN MOTOR MSRP: Now: $29.99 Add to Cart Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view NR RACING | sku: NR_MD016483 Split Keepers for Stainless Valves with 6.5mm Stems Split Lock Keepers for Aluminum Retainers for 6.5mm Stainless Valves (GX270, GX390, and 13/15 hp Clones) Sold as a pair (2 keepers) to do 1 Valve MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_DLRET-390-ALUM Aluminum Retainer for 6.5 mm Valves Aluminum Retainer for use with split keepers. Use with HD/Dual Springs & SS Valves. 6.5mm Valve Stem RETAINERS ARE SOLD INDIVIDUALLY - 2 REQUIRED PER MOTOR KEEPERS ARE NOT INCLUDED - ORDER SEPARATE Use Keeper set part# NR_MD016483 MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_VAL32-65-3465 Stainless Valve 31.5 mm x 6.5 mm 31.5mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390 Oversize Exhaust Valves and many 13/15 HP OHV Motors. Note: Valve may be coated or un-coated and... MSRP: Now: $31.99 View Details Compare Quick view NR RACING | sku: NR_VAL35-65-3465 Stainless Valve 35 mm x 6.5 mm 35mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390/Predator 420 Intake valve. Measure the existing valve before purchasing as they may be different... MSRP: Now: $31.99 View Details Compare Quick view Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves Stock Replacement valve set for 420 Predators, 38mm Intake, 34mm ExhaustIncludes Retainers and keepers SPRINGS NOT INCLUDED (pic for reference only)New Take Off MSRP: $31.99 Now: $18.42 View Details Compare Quick view Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda Head is finished but does not include Valves, Studs, springs, guide plates, seals, etc. For Honda GX390 and Predator 420 NON-HEMI MSRP: Now: $71.99 Add to Cart Compare Quick view sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare Heads are finished and ready for assembly, but do not include Valves, Studs, springs, guide plates, seals, etc. Picture is for reference only MSRP: Now: $69.99 Add to Cart Compare Quick view sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block Adjustable Push Rod tool for checking for proper pushrod length. Adjust from approx 1.2". Must be used with stock springs. perfect for determining proper pushrod length and valve geometry. DO NOT RUN IN MOTOR MSRP: Now: $29.99 Add to Cart Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view NR RACING | sku: NR_DLRET-390-ALUM Aluminum Retainer for 6.5 mm Valves Aluminum Retainer for use with split keepers. Use with HD/Dual Springs & SS Valves. 6.5mm Valve Stem RETAINERS ARE SOLD INDIVIDUALLY - 2 REQUIRED PER MOTOR KEEPERS ARE NOT INCLUDED - ORDER SEPARATE Use Keeper set part# NR_MD016483 MSRP: Now: $6.99 Add to Cart Compare Quick view NR RACING | sku: NR_VAL32-65-3465 Stainless Valve 31.5 mm x 6.5 mm 31.5mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390 Oversize Exhaust Valves and many 13/15 HP OHV Motors. Note: Valve may be coated or un-coated and... MSRP: Now: $31.99 View Details Compare Quick view NR RACING | sku: NR_VAL35-65-3465 Stainless Valve 35 mm x 6.5 mm 35mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390/Predator 420 Intake valve. Measure the existing valve before purchasing as they may be different... MSRP: Now: $31.99 View Details Compare Quick view Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves Stock Replacement valve set for 420 Predators, 38mm Intake, 34mm ExhaustIncludes Retainers and keepers SPRINGS NOT INCLUDED (pic for reference only)New Take Off MSRP: $31.99 Now: $18.42 View Details Compare Quick view Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda Head is finished but does not include Valves, Studs, springs, guide plates, seals, etc. For Honda GX390 and Predator 420 NON-HEMI MSRP: Now: $71.99 Add to Cart Compare Quick view sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare Heads are finished and ready for assembly, but do not include Valves, Studs, springs, guide plates, seals, etc. Picture is for reference only MSRP: Now: $69.99 Add to Cart Compare Quick view sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block Adjustable Push Rod tool for checking for proper pushrod length. Adjust from approx 1.2". Must be used with stock springs. perfect for determining proper pushrod length and valve geometry. DO NOT RUN IN MOTOR MSRP: Now: $29.99 Add to Cart Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view NR RACING | sku: NR_VAL32-65-3465 Stainless Valve 31.5 mm x 6.5 mm 31.5mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390 Oversize Exhaust Valves and many 13/15 HP OHV Motors. Note: Valve may be coated or un-coated and... MSRP: Now: $31.99 View Details Compare Quick view NR RACING | sku: NR_VAL35-65-3465 Stainless Valve 35 mm x 6.5 mm 35mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390/Predator 420 Intake valve. Measure the existing valve before purchasing as they may be different... MSRP: Now: $31.99 View Details Compare Quick view Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves Stock Replacement valve set for 420 Predators, 38mm Intake, 34mm ExhaustIncludes Retainers and keepers SPRINGS NOT INCLUDED (pic for reference only)New Take Off MSRP: $31.99 Now: $18.42 View Details Compare Quick view Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda Head is finished but does not include Valves, Studs, springs, guide plates, seals, etc. For Honda GX390 and Predator 420 NON-HEMI MSRP: Now: $71.99 Add to Cart Compare Quick view sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare Heads are finished and ready for assembly, but do not include Valves, Studs, springs, guide plates, seals, etc. Picture is for reference only MSRP: Now: $69.99 Add to Cart Compare Quick view sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block Adjustable Push Rod tool for checking for proper pushrod length. Adjust from approx 1.2". Must be used with stock springs. perfect for determining proper pushrod length and valve geometry. DO NOT RUN IN MOTOR MSRP: Now: $29.99 Add to Cart Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view NR RACING | sku: NR_VAL35-65-3465 Stainless Valve 35 mm x 6.5 mm 35mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390/Predator 420 Intake valve. Measure the existing valve before purchasing as they may be different... MSRP: Now: $31.99 View Details Compare Quick view Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves Stock Replacement valve set for 420 Predators, 38mm Intake, 34mm ExhaustIncludes Retainers and keepers SPRINGS NOT INCLUDED (pic for reference only)New Take Off MSRP: $31.99 Now: $18.42 View Details Compare Quick view Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda Head is finished but does not include Valves, Studs, springs, guide plates, seals, etc. For Honda GX390 and Predator 420 NON-HEMI MSRP: Now: $71.99 Add to Cart Compare Quick view sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare Heads are finished and ready for assembly, but do not include Valves, Studs, springs, guide plates, seals, etc. Picture is for reference only MSRP: Now: $69.99 Add to Cart Compare Quick view sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block Adjustable Push Rod tool for checking for proper pushrod length. Adjust from approx 1.2". Must be used with stock springs. perfect for determining proper pushrod length and valve geometry. DO NOT RUN IN MOTOR MSRP: Now: $29.99 Add to Cart Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Predator | sku: NR_VLVSET-420PRED Valve Set, Predator 420, 38/34mm Valves Stock Replacement valve set for 420 Predators, 38mm Intake, 34mm ExhaustIncludes Retainers and keepers SPRINGS NOT INCLUDED (pic for reference only)New Take Off MSRP: $31.99 Now: $18.42 View Details Compare Quick view Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda Head is finished but does not include Valves, Studs, springs, guide plates, seals, etc. For Honda GX390 and Predator 420 NON-HEMI MSRP: Now: $71.99 Add to Cart Compare Quick view sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare Heads are finished and ready for assembly, but do not include Valves, Studs, springs, guide plates, seals, etc. Picture is for reference only MSRP: Now: $69.99 Add to Cart Compare Quick view sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block Adjustable Push Rod tool for checking for proper pushrod length. Adjust from approx 1.2". Must be used with stock springs. perfect for determining proper pushrod length and valve geometry. DO NOT RUN IN MOTOR MSRP: Now: $29.99 Add to Cart Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Honda | sku: NR_12200-Z1C-406 Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda Head is finished but does not include Valves, Studs, springs, guide plates, seals, etc. For Honda GX390 and Predator 420 NON-HEMI MSRP: Now: $71.99 Add to Cart Compare Quick view sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare Heads are finished and ready for assembly, but do not include Valves, Studs, springs, guide plates, seals, etc. Picture is for reference only MSRP: Now: $69.99 Add to Cart Compare Quick view sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block Adjustable Push Rod tool for checking for proper pushrod length. Adjust from approx 1.2". Must be used with stock springs. perfect for determining proper pushrod length and valve geometry. DO NOT RUN IN MOTOR MSRP: Now: $29.99 Add to Cart Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view sku: NR_HEAD-13HP-CLONE-BARE Cylinder Head, Honda GX390 Bare Heads are finished and ready for assembly, but do not include Valves, Studs, springs, guide plates, seals, etc. Picture is for reference only MSRP: Now: $69.99 Add to Cart Compare Quick view sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block Adjustable Push Rod tool for checking for proper pushrod length. Adjust from approx 1.2". Must be used with stock springs. perfect for determining proper pushrod length and valve geometry. DO NOT RUN IN MOTOR MSRP: Now: $29.99 Add to Cart Compare 1 2 Next 1 2 Next Compare Selected
Quick view sku: NR_390ADJPRTOOL Pushrod Length Checker - Big Block Adjustable Push Rod tool for checking for proper pushrod length. Adjust from approx 1.2". Must be used with stock springs. perfect for determining proper pushrod length and valve geometry. DO NOT RUN IN MOTOR MSRP: Now: $29.99 Add to Cart Compare 1 2 Next 1 2 Next Compare Selected